Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images
Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar image strips; the images were used in conjuncti...
Published in: | Journal of Geophysical Research: Oceans |
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American Geophysical Union
1979
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Online Access: | https://doi.org/10.1029/JC084iC04p01827 |
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ftcaltechauth:oai:authors.library.caltech.edu:fv0j3-dyv63 2024-06-23T07:49:46+00:00 Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. 1979-04-20 https://doi.org/10.1029/JC084iC04p01827 unknown American Geophysical Union https://doi.org/10.1029/JC084iC04p01827 oai:authors.library.caltech.edu:fv0j3-dyv63 eprintid:61809 resolverid:CaltechAUTHORS:20151104-094925827 info:eu-repo/semantics/openAccess Other Journal of Geophysical Research C, 84(C4), 1827-1835, (1979-04-20) info:eu-repo/semantics/article 1979 ftcaltechauth https://doi.org/10.1029/JC084iC04p01827 2024-06-12T02:32:29Z Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar image strips; the images were used in conjunction with data from the aircraft inertial navigation and altimeter. Also, independently measured, accurate positions of a number of ground control points were available. Initial tests of the method were carried out with repeated coverages of a land area on the Alaska coast (Prudhoe). Absolute accuracies achieved were essentially limited by the accuracy of the inertial navigation data. Errors of drift measurements were found to be about ±2.5 km. Relative accuracy is higher; its limits are set by the radar image geometry and the definition of identical features in sequential images. The drift of adjacent ice features with respect to one another could be determined with errors of less than ±0.2 km. © 1979 by the American Geophysical Union. Paper number 8Cl369. Received August 28, 1978; revised December 6, 1978; accepted December 11, 1978. Published - F._et_al-1979-Journal_of_Geophysical_Research__Oceans__1978-2012_.pdf Article in Journal/Newspaper Arctic Sea ice Alaska Caltech Authors (California Institute of Technology) Arctic Journal of Geophysical Research: Oceans 84 C4 1827 1835 |
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Caltech Authors (California Institute of Technology) |
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description |
Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar image strips; the images were used in conjunction with data from the aircraft inertial navigation and altimeter. Also, independently measured, accurate positions of a number of ground control points were available. Initial tests of the method were carried out with repeated coverages of a land area on the Alaska coast (Prudhoe). Absolute accuracies achieved were essentially limited by the accuracy of the inertial navigation data. Errors of drift measurements were found to be about ±2.5 km. Relative accuracy is higher; its limits are set by the radar image geometry and the definition of identical features in sequential images. The drift of adjacent ice features with respect to one another could be determined with errors of less than ±0.2 km. © 1979 by the American Geophysical Union. Paper number 8Cl369. Received August 28, 1978; revised December 6, 1978; accepted December 11, 1978. Published - F._et_al-1979-Journal_of_Geophysical_Research__Oceans__1978-2012_.pdf |
format |
Article in Journal/Newspaper |
author |
Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. |
spellingShingle |
Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
author_facet |
Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. |
author_sort |
Leberl, F. |
title |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_short |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_full |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_fullStr |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_full_unstemmed |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_sort |
mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
publisher |
American Geophysical Union |
publishDate |
1979 |
url |
https://doi.org/10.1029/JC084iC04p01827 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice Alaska |
genre_facet |
Arctic Sea ice Alaska |
op_source |
Journal of Geophysical Research C, 84(C4), 1827-1835, (1979-04-20) |
op_relation |
https://doi.org/10.1029/JC084iC04p01827 oai:authors.library.caltech.edu:fv0j3-dyv63 eprintid:61809 resolverid:CaltechAUTHORS:20151104-094925827 |
op_rights |
info:eu-repo/semantics/openAccess Other |
op_doi |
https://doi.org/10.1029/JC084iC04p01827 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
84 |
container_issue |
C4 |
container_start_page |
1827 |
op_container_end_page |
1835 |
_version_ |
1802640441096536064 |